System of electrical insulation.



I P. M. LOGKE. SYSTEM OI ELECTRICAL INSULATION. APPLIOATION FILED MAB.20,1907.

Patented Nov. 17, 1908.

2 SHEETSSHEET 1.

P. M. LOGKE. SYSTEM OF ELECTRICAL INSULATION.

APPLICATION FILED MAILZQ, 1907.

Patented NOV. 17, 1908.

' 2 SHEETS-SHEET a.

Nmus

FRED M. LOCKE, OF VICTOR, NEW YORK.

SYSTEM OF ELECTRICAL INSULATION.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed March 20, 1907. Serial No. 363,378.

To all whom it may concern:

Be it known that I, FRED M. Looxn, of Victor, in the county of oOntario,in the State of N ew, York, haveinvented new and useful Improvements inSystems of'Electrical Insulation, of which the following,

taken in connection withthe accompanying drawings, scription.

This invention relates to an improved system of insulation for highpotential electric conductors involving the use of a series ofinsulators which may be built up indefinitely or added to the system asthe voltage of the current in the conductor is increased therebyenabling me to quickly and economically provide am le insulation for anydegree of voltage an still use insulator sections of comparatively smallsize.

Themain object of my present invention is to support the severalinsulators of the is a full, clear, and exact deseries in such mannerthat the normal weight or load carried by such insulators individuallyand collectively will operate to press the sections of each insulatortogether thereby keeping such sections in close contact and permittingthem to be assembled or nested together loosely if desired or at leastwithout special glazing, cementing or otherwise bonding such sectionspermanently at the joints, it being understoodthat each insulator ispreferably made upof a series of comparatively small etticoat sections.

of porcelain or other nested together.

In other words, I have sought to interpose any number of insulators ofthe character described between a main support and insulating materialelectric conductor and at gradually increasing distance from the mainsupport by supporting each insulator from the bottom with its etticoatsflaring downwardly and carrying the bottom section of each succeedinginsulator by suitable links or tie pieces con-- uected to or engagedwith the top section of the next preceding insulator of the series sothat the weight of each insulator after the first one of the series iscarried by the top section of the one preceding it thereby clamping theinsulator sections of each insulator between its bottom supporting pinand the link or connection leading from the top of the insulator to thebottom of the next succeeding insulator.

A further object is to suspend the entire series of m'sulators upon andfrom a swing- -1nghanger attached to .the cross arm or other availablesupport.

Other objects and uses will appear in the following description.

In the drawings-Figures l and 2 are eleva-tions of modified forms of myimproved insulating system showing one of the insulators of each form insection. Figs. 3 and dare elevations-of further modified systemsofiinsulation, each showing one of the insulators in section.

In the system shown in Fig. 1, I provide amain support 1 with a suitableattaching element as an eye 2 to which is swiveled one end of .aswinging hanger 3 which extends some distance 'from the main support -1and terminates in an upright spindle l'. adapted to enter a socket inthe bottom of a sectional insulator 5- forming one of a series ofsimilar insulators. The hanger 3. therefore, extends from a point aboveto a position under the first insulator -5 of the series, the main bodyof the hanger being located at one side of said insulator. A secondhanger -6 is supported at oneend upon the top section of the insulator-5- and is preferably connected thereto by means of a cap -7, saidhanger 6 extending downwardly at the opposite sideof the insulator -5and some distance below the lower section of said insulator andterminates in -an upright. spindleor pin 4.-, some distance below but invertical alinemen-t with the first named spindle 4 and adapted to enterthe under side of the bottom section of the second insulator -5- of theseries thereby supporting the said second insulator in verticalalinement with but some distance below the first insulator. In likemanner a second hunger -(3 is supported upon and connected to the topsew tion of the second insulator F) and extends downwardly some distancebelow the bottom of said second insulator and terminates in an uprightpin or spindle -'l which enters a central socket in the bottom sectionof a third insulator 5, all of said insulators being in this instancesupported and retained some distance apart in vertical alinement oneabove the other while the intermediate portions of the hangers, whichalternate on opposite sides of the succeeding .sectionof each insulatorupon one of the hangers and connecting or supporting the hanger for eachsucceeding insulator upon the top section of the one preceding it, thesections of each insulator are automatically pressed or nested togetherand by this means .may be retained in operative position without the useof-cement or other bond at the joints, although such cement or bond maybe used if desired. The hanger 3-- constitutes a link or tie piecebetween the first insulator and the main support while the hanger 6constitutes between adjacent insulators so that the whole system ofinsulators is practically gsuspended from the swinging hanger 3 whichenables such insulators to shift or swing within a limited range ofadjustment to conform to inequalities of tension of the wire leadingfrom opposite sides of the last insulator of the series. The hangers 6--and insulators -5- may be multiplied indefinitelyto afiord the properinsulation accordin to the voltage of the current which it is desired toinsulate from the main support 1 but the last insulator of the series isadapted to carry the conductor or feed wire as 8 which is supported uponand preferably secured to the top sectioniof said last insulator of theseries.

, The system shown in Fig. 2 is quite similar to that shown in Fig. 1except that the hangers as -3 and 6- are made in the form of rings oropen fram'es having central pins on the bottom bar for receiving andsupporting the bottom insulator section of each insulator centrallywithin its supporting frame or hanger. That is, the hanger -3'-'swiveled at its upper end in the supporting eye -9.- on the mainsupport 1 and extends downwardly at opposite. sides of and underthe-first insulator -5 while the insulators --6 which are identical witheach other are mounted at their upper ends in the grooves of the topsections of their respective insulators and are held in such grooves bytie wires -10 fastened around the neck of the top sections of thecorresponding insulators. The lower hanger -6 represents an elevation ofthe superposed hanger 6 while the latter hanger represents an edge view0 r the lower hanger and it is therefore clear t lat the intermediatehanger 6- is carried wholly links or tie pieces ceases by the topsection of the firstinsulator and carries from the under side the secondinsulator which in turn carries from the top the lower hanger -t3 andsupports from the bottom the third insulator 5, which in this instanceis the last one of the series and carries upon its top section theconductor or line wire -S.

In Fig. 4 I have shown a series of two insulators 5- spaced apart oneabove the other in vertical alinement, the upper insulator of the seriesbeing mounted directly upon a center pin 12- which enters a socket inthe lower insulator section or bottom of the insulator and is supportedupon a fixed part as a cross arm -1 while the hanger as 6- is of theopen frame type substantiallylike that shown in Fig. 2 having its upperend centrally seated in a groove in the top section of the insulator 5'-and secured therein by a tie wire -10- while its opposite side extendsdownwardly some distance below and at opposite sides of the insulators--5 and cross arm -1- and under the lower insulator where it is providedwith a central center pin -t entering a socket in the bottom section ofthe second insulator. This last insulator carries upon its top sectionthe line wire as -8- or this line wire may be substituted by anotherhanger similar to the hanger -6- for carrying a third insulator ifdesired.

In Fig. 4 I have shown a series of three insulators -5- as arranged sideby side in a horizontal plane some distance apart, the first insulatorof the series having its bottom section supported upon an insulating pin'-4' on a cross arm 1- while its top section is provided with a cap 7 towhich is secured one end of a bracket -13,' said bracket being thereforecarried by the top section of the first insulator -5. The other end ofsaid bracket -13- is provided with an .upright center pin l% enteringthe socket in the bottom of the insulator -5 for supporting the latter.In like manner the top section of this second insulator carries a secondbracket 13- and enters the under side of the third insulator supportingon its top the wire -8.

The brackets 1 l-- may be duplicated and supported by another support as1- at the right of the insulators herein shown for supporting anadditional series ofinsu lators but Ihave deemed it unnecessary to showsuch construction in view of the factthat it is a mere duplication. ofwhat is herein disclosed, in which case the wire is supported upon thecenter insulator of the series.

What I claim is: 1. A system of insulation for high voltage electriccurrents, comprising a series of insulators arranged in sequence, andeach comeesrews v posed of sections nested together and suppofiing ties1ending-from the bottom sec- 'tion of each insulator to thevtep sectionof the one preceding it.

2. A system of insulation for high Voltage electric currents, comprisinga series of insulators arranged in sequence an electric conductorresting on the top of the last in sulator of theseries, caps on the topsof, the

1 preceding insulators, and a supporting tie 10 leading from the bottomof each insulator to 1 the cap of the next preceding insulator.

In Witness whereof I have hereunto set my hand this 16th day of March1907'.

FRED M. LOCKE. Vitnesses: Y

W. A. HIGINBOTHAMJ CHAS. L, BROWN.

